6V deep cycle batteries

Almot wrote:

Bogart current - 30A max - comes from Bogart.

The IUI profile comes from battery makers, of course folks are allowed to set them to what they want.

Almot wrote:
Lawrosa - inverter fridges draw "less" energy daily than on-off machines. But 12 cu.ft (or is it 13?) is a lot to cool, you can't trick physics.

Though not important in this particular situation - low overcast - but his 600W solar is not 60A system. Bogart PWM add-on to Trimetric monitor is 30A max. It does have limiting circuitry that allows over-panelling up to 600W without going up in smoke - as I recall - but it can't do more than 30A.

Not completely correct. It's a 31 amp controller. Then it derates it as the amps available are higher.

MEXICOWANDERER wrote:
When you know your ravioli, you know how long to keep it in the oven and at what temperature, to make sure it comes out just right.

It's a SMART oven. It has no adjustment. It knows how *IT* wants your ravioli to be prepared. There's no way in the world you would EVER GET burned ravioli, right?

This is how stupid smart battery charging is...

Get the parallel here?

David, I almost don't get your heated point.

i.e. Many ovens have very smart fixed settings ... maybe even some have a setting for "ravioli". What could be simpler? :h and :B

What Mex is doing, is trying to get people to think. He does this often :)

Bogart current - 30A max - comes from Bogart.

MEXICOWANDERER wrote:

Get the parallel here?

No, I don't see how your oven example comes close to the proposed simple question that obviously has a complex answer!

I also do not believe it has anything to do with parallel vs series,, pwm vs mppt!!!

How does the OPs system specs affect the answer?

How many 95-80 cycles can the OP 'do' before the chemical reaction is irreversible or he's force to replace his generator? I'm not sure it is quantifiable easily. Let me suggest 9.846372 days more or less :B ya does what ya gotta does.

Bogarts finish volt/current come from the battery maker.

Almot wrote:
Lawrosa - inverter fridges draw "less" energy daily than on-off machines. But 12 cu.ft (or is it 13?) is a lot to cool, you can't trick physics.

Though not important in this particular situation - low overcast - but his 600W solar is not 60A system. Bogart PWM add-on to Trimetric monitor is 30A max. It does have limiting circuitry that allows over-panelling up to 600W without going up in smoke - as I recall - but it can't do more than 30A.

Ahhh pwm... Gotcha... And ahhh... mexican wanderer with the parallel thing... yes....

Some series panels and an mppt is in order I would assume.

Lawrosa - inverter fridges draw "less" energy daily than on-off machines. But 12 cu.ft (or is it 13?) is a lot to cool, you can't trick physics.

Though not important in this particular situation - low overcast - but his 600W solar is not 60A system. Bogart PWM add-on to Trimetric monitor is 30A max. It does have limiting circuitry that allows over-panelling up to 600W without going up in smoke - as I recall - but it can't do more than 30A.

Slownsy wrote:
TM-2030 Trimetric absorb 14.5 Amp set pt 2% 520A. time 4h high V15.9. float V13.5 Overcharge 10%. Finish A 3.5%
Solar 600W I am running a domestic 314l Samsung inverter fridge. Overnight all op usage around 14-16% 80A. As my generator was stolen I just wanted to check how long without damaging batteries. Back on a powered site for now. Thanks all.
Frank.

So on bogarts site they have a battery charge parameter calculator.

http://www.bogartengineering.com/support/charging-parameters.html

Ive input all different batteries and ah's and got some stupid 14.3 charging voltages of absorption for parameters..

Your amps set point 2% of your 520ah batts = 10.4a

Should probably be what the batt manufacturer suggests or at least 14.8 or so right?

Guess it dont matter if a cloudy day as it can never reach set point? Even turning up the voltage on the controller?

Note on P7: This selects which of two standards is used for the TM-2030 to register when the battery is "charged". L3 or L4
If L3 is chosen: this is the "easier" condition: It will cause the green "charging" light to flash (indicating "meets charging parameters") when the voltage exceeds P1 value, and simultaneously the charging amps is less than P2 % times P3. The green light will stop flashing as soon as this standard is not being met. In this case the green flashing light means "batteries presently meet charged criteria."
If L4 is chosen: a higher standard is required to be "charged." First the L3 standard must be met. Then next the overcharge percentage in P20 must also be met before the green "charging" light will flash. It will then continue to flash until the "Percent Full" display goes to 97% or lower. In this case the green flashing light means "batteries were charged and they haven’t yet discharged below 98% full."

15.9 is kinda high no?

12 cu.ft compressor fridge wrote:

Its some type of inverter fridge...Im not familiar.. Looked up specs but says nothing about power consumtion

MEXICOWANDERER wrote:

It's a SMART oven. It has no adjustment. It knows how *IT* wants your ravioli to be prepared. There's no way in the world you would EVER GET burned ravioli, right?

This is how stupid smart battery charging is...

I don't care how "it" wants my ravioli, it's me who will be eating them. If controller has no adjustments, it sucks.

The OP has got - as it turned out after 2 or 3 pages - a different kind of "smart" system, where you adjust the parameters and let it run on autopilot. Ops, - heavy headwind and opposing current kicks in. Autopilot is keeping same straight course, because it doesn't know any better, and the captain thinks that autopilot is doing the thinking :). Eventually autopilot could've managed, with more power/sails or less load in the boat, but what's the use if to change any of this, you need to make it to the harbor first.

12 cu.ft compressor fridge + some solar = generator dependency. He was lucky it was overcast, not rain. As much as I hate performance of propane fridge, 490W solar keeps me afloat, literally and metaphorically, in any kind of weather.